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Right-Click on the file that was downloaded and choose Run as administrator. Answer Yes if prompted to Allow.

Click OK at the installer screen that comes up.

The software will be extracted and will open.

Click Next at the first screen.

The Update Database screen will appear. Click the Update button.

Once updated, click the Next button.

On the Scan System screen, click the Scan button.

Once, the Scan is finished click on the Cleanup button to remove any threats and reboot if prompted to do so. If no threats are found just close the programme.

If threats were found, then after the reboot, re-run the programme to verify no threats remain. If threats are still detected, click the Cleanup button once more.

Whether threats were found or not there will be a folder named mbar on your desktop. Open this folder and you will find in the list that presents with a file named mbar-log-...txt and another named system log.txt. Please open the files one at a time and copy and paste the contents of each back here.

If that doesn't work we can try Malwarebytes again but using it a different way.

A colleague has reminded me of the Chameleon facility.

Reinstall Malwarebytes but this time go to the Start menu > All Programs > MalwareBytes' Anti-Malware > Tools > MalwareBytes' Anti-Malware Chameleon, then click on them one at a time until one of them is successful.

It will allow you to repair common issues with your computer such as firewall, file permission, and Windows Update problems. When using this tool you can select the particular fixes you would like to launch and start the repair process.

I don't see it in your installed programs list though so I am not sure what is going on there. "TeaTimer" in Spybot Search & Destroy will stop anything it is suspicious of.

If you do have it on your machine, you will need to disable it.

How to disable TeaTimer so it does not interfere with the changes we are going to make.

Start Spybot-S&D

Go to the Mode menu and make sure Advanced Mode is selected

On the left hand side choose Tools and then click on Resident

Uncheck Resident Tea Timer and choose OK for any other prompts

Restart your computer

Also I see this one which should be uninstalled.

Avanquest update

SOoo... carry out those actions and see if Malwarebytes will run. If it does, don't worry about the new FRST logs, just post back the Malwarebytes one. If it doesn't run then I will need the fresh FRST logs.